The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2023
Filed:
Oct. 19, 2018
Applicant:
Aerojet Rocketdyne, Inc., Sacramento, CA (US);
Inventors:
Jeff Miller, Simi Valley, CA (US);
Steven Grota, Sacramento, CA (US);
Assignee:
AEROJET RICKETDYNE, INC., Canoga Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/22 (2006.01);
U.S. Cl.
CPC ...
F04D 29/22 (2013.01);
Abstract
A pump includes a shaft that is rotatable about a central axis. An inducer is mounted on the shaft and has an inducer blade and inducer shroud attached at an outer end of the inducer blade. An impeller is mounted on the shaft downstream of the inducer and has an impeller blade and an impeller shroud attached at an outer end of the impeller blade. There is an axially-elongated annular seal element disposed at an axial end of the inducer shroud that provides sealing between the inducer shroud and the impeller shroud.